From hiking to your favorite campsite or jogging down the street, the Spyder Men's Eiger Wool Full-Zip Sweater offers warmth and moisture management. Combined with cozy merino wool and high-performance Sirona polyester, this technical midlayer feels soft and lifts sweat from your skin so you donâ??t feel clammy. And since it has a full-zip design, you??re free to layer with ease so you're prepared for whatever the weather has in store.